make chained accessors
A chained accessor is one that always returns the object when called
with parameters (to set), and the value of the field when called with no
arguments.

This module subclasses Class::Accessor in order to provide the same
mk_accessors interface.

Maintainer: Sean Comeau <scomeau@obscurity.org>

WWW: http://search.cpan.org/dist/Class-Accessor-Chained/
